Viruses called bacteriophages can infect and set in motion a genetic takeover of bacteria, such as Escherichia coli Bacteria are prokaryotes with cells much smaller and more…

Slide 1 Viruses and Bacteria Chapters 19 & 27 Slide 2 Bacteria Small Less organized Viruses Even smaller Simpler Lacking structure Metabolic machinery Slide 3 Tobacco…

Slide 1 Animal Viruses Because viruses are lifeless partials, their spread depends on other agents. A ( ) is an intermediate host that transfers a pathogen or parasite to…

Slide 1 NOTES: CH 19 - The Genetics of Viruses Slide 2 Overview: Microbial Model Systems ● Viruses called bacteriophages can infect and set in motion a genetic takeover…

Slide 1 CHAPTER 19 VIRUSES 1 1 OVERVIEW 2 Viruses called bacteriophages can infect and set in motion a genetic takeover of bacteria, such as Escherichia coli Viruses lead…

Viruses Viruses A. Viruses are a unique group of biological entities 1. They are not capable of surviving without a host cell (lack metabolic machinery) 2. They do, however,…

Chapter 19 Viruses Microbial Model Systems Are viruses living organisms? Maybe The origins of molecular biology lie in early studies of viruses that infect bacteria T4 bacteriophage…

Impending Doom ! The World Coming To An End Part III Disease Occurrence Endemic â normal levels within geographic regions. Epidemic â sudden severe outbreak within a region.…

Viruses Gene Regulation results in differential Gene Expression, leading to cell Specialization Structure of Viruses Viruses are not cells A virus is a very small infectious…

MULTIPLICATION Remember……. Viruses are obligate intracellular parasites that can reproduce only within a host cell. They do not have Enzymes for metabolism Do not have…